Daniel Siepmann
c0d988fc89
Nix adds errexit and failpipe. Using head will end in 141 SIGPIPE, see: https://unix.stackexchange.com/a/580119/185477 I apply the workaround / fix as suggested on StackExchange. That way the script runs and can execute the cleanup and diff.
20 lines
495 B
Nix
20 lines
495 B
Nix
{ writeShellApplication }:
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writeShellApplication {
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name = "custom-update-system";
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text = ''
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nix-channel --update
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home-manager switch
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oldVersion=$( (home-manager generations; true) | head -n 2 | tail -n 1 | cut -d' ' -f 7)
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newVersion=$( (home-manager generations; true) | head -n 1 | cut -d' ' -f 7)
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nvd diff "$oldVersion" "$newVersion"
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home-manager expire-generations '-12 days'
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nix-env --delete-generations +3
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nix store gc
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nix store optimise
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'';
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}
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